dewey



4 Sheets-Sheet 1.

(.No Model.)

M. WfDEWEY.

ELECTRICAL TYPE WRITER.

Paten ggd Jul INVENTOR ATTORNEYS WITNESSES I 2%. ZW 6. W.

N. PETERS. Fhnlo-Lilhogmplmr, Washington, D. c.

4 Shets-Sheet 2.

(No Model.)

M. W. DEWEY.

ELEUTRIGAL TYPE WRITER.

No. 406,390. Patented July 2 1889..

N. PETERS. Phulo-Lilhngnphor. Wilhinginn. 0.0.

(No Model.) 4 Sheets-Sh'eet 3.

M. W. DEWEY.

ELECTRICAL TYPE WRITER.

No. 406,390. Patented July 2, 1889.

M II

WITNESSES 1 I INVENTOH: M f A 1% Z M- m v- AM/ WM ATTORNEYSV N. PETERS, Pmln-uxhn m hu, Washington 01(1 (No Model.) 4-SheetsShe et 4. M. W. DEWEY.

ELEOTRIGAL TYPE WRITER.

No. 406,390. Patented July 2, 1889.

N. PETERS. Plmlo-Liflw rnphnr, Wahingiom D (l UNITED STATES PATENT OFFICE.

MARK WV. DElVEY, OF SYRACUSE, NEWV YORK, ASSIGNOR OF TVVO-TI-IIRDS TO EMIL LAASS AND CHARLES H. DUELL, BOTH OF SAME PLACE.

ELECTRICAL TYPE-WRITER.

SPECIFICATION forming part of Letters Patent NO. 406,390, dated July 2, 1889.

Application filed December 1, 1887. Renewed November 24, 1888. fierial No. 291,803. (No model.)

To aZZ whom it may concern:

Be it known that I, MARK W. DEWEY, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Electric Typeriters, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description;

Although this type-writer may be operated by most of the well-known means for operating electrical typewriters having type-Wheels or a magnet for every character, yet it is more especially adapted to be operated by a selecting device in the vicinity of the instrument, similar to the one described inm y prior application, Serial No. 251,6l5, filed October 6, 1887, and operated at a distant point by either a few keys manipulated to form combinations or by a complete key-board.

The objects of my invention are to print a message at a receiving-station as fast as keys at the transmitting-station are depressed, using independently-movable type-bars without necessitating the employment of isochronously-moving wheels having the. type affixed thereto, or without the 'necessity'of waiting for mechanism to register accurately before printing; and the object is also to print the message type-writer style on a letter-sheet, and to provide means of placing the carriage in any position and turning the platen with more case and greater speed than on ordinary type-writers.

In the annexed drawings, Figure l is a side elevation of the selecting device. Fig. 2 is a plan view of the magnets and contact-points of the selecting device. Fig. 3 is an elevation of the printer, taken in a plane on the line m 00, Fig. 4:; Fig. i, a plan View of the printer without the carriage, showing the arrange ment of the circuits. Fig. 5 is a plan view of the carriage and platen. Fig. (5 shows the means for moving the carriage against the tension of the spring to make space between letters to be printed or space between words. Fig. 7 shows face view of the arrangement of magnets for. shifting the type-carrier. Fig.8 is a plan view of the two different key-boards and their connection with the battery and Fig. 11 is a detached plan view of the switchbar for turning the platen to a new line or making space between messages written on same sheet. Fig. 12 is a plan view of a portion of the screw for moving the platen. Fig. 13 is a side elevation of a modification of the circuit-maker of the local circuit controlling the feelers of the selecting device. Fig. 14 is a face view of the same. Fig. 15 is an enlarged view of Fig. 3. Fig. 16 is a front elevation of the selecting device; and

and are supported in a horizontal'position by.

a prop B at the opposite end. Each of said feelers is provided in its top edge with a number of notches a a, corresponding to the number of plates 19 p, the notches in each feeler being arranged in different relative position, and in such position in relation to the plates 1) 19 that by shifting one of said plates from its normal position only one of the feelers A will have all of its notches in coincidence with all the plates 1) 1). Each of the plates 19 p is held in its normal position by a spring I) holding plate to rest against a stop I). To the upper part of each of said plates is at tached an armature p, and facing said armature is arranged a magnet on. From each of the magnets m is extended a wire 0, which terminates under the key-board O, or is con- Fig. 9 of the drawings, and are pivoted to a metal bar d, which is connected with the main battery D. The aforesaid key-board may either consist of acomplete set of keys, one for each letter and punctuation-marks,

and for shifting the carriage and for spacing, or consist of a limited number of keys equal to the number of plates 1) 1) heretofore referred to, said second form of key-board belo electro-magnets m, which are connected with.

a local battery D, with which latter are also connected the pivots of the plates 1) p by wires e. The plates 19 p and their pivots, be-

ing composed of metal, form electric con- I 5 ductors of said plates.

In front of each plate 1), at one end of the base thereof, is arranged a stationary stop f, (see Fig. 16 of the drawings,) which comes in contact with the plate when actuated by the 20 armature p on the upper end thereof, being attracted by the magnet m. At the side of the stops f are oscillatory metallic arms f, which are secured to ahorizontal bar f j on rnaled in suitable insulated bearings g g.

The arms f f are held normally out of contactwith the stops f by a spring or springs g, crowding the said arms into the aforesaid position. The bar f is connected with the magnets m by wire e, and from said bar pro- 0 jects another arm carrying an armature g, which faces an electro-magnet g", and a wire 0 connects said magnet with each of the magnets m m m m m, and another wire 0 leads from the magnet g" to a magnet 9, which, 3 5 by its attraction of the armature on the bellhammer h, sounds the gong h. is extended from the magnet g to ground.

At the receiving-station I arrange the following electro-magnetic typewriter: On a ver- 0 tical pivot t', I pivot the annular type-barcarrier G, on which are pivoted the bars or arms j, to the free end of which the types are affixed. Radially around the exterior of the carrier G is a series of levers 7c is, pivoted on 5. postsJt, the upper ends of which project horizontally across the tops of the levers at the end most remote from the carrier G, and setscrews 70 are extended vertically through the horizontal projections of the posts, to serve as adjustable stops, against which the aforesaid ends of the levers normally rest. To the under side of the said end of each lever is attached an armature 70'", under which is arranged a magnet on. There is one lever 76 for each three adjacent type-bars j, as best seen in Figs. 4 and 17 of the drawings, and each of said type-bars has pivoted to it a cam Z, adapted to bear on top of a suitable bearing on the adjacent end of the lever in, so that when the armature on the opposite end of the lever is attracted by the magnet m the resultant upward movement of the end of the lever under the cam Zwill throw the free end of the type-bar up and cause the type to 65 make the impression on the paper supported on the platen F. On arms Z, projecting from the supporting-frame E of the type-writer, is

A wire 0 pivoted the feed-screw II, whichmoves the care riage I and platen F, mounted thereon. The screw is rotated by means of a ratchet-wheel Z, attached to the end of the screw, and a lever a, pivoted on the frame E and having conneeted to it a pawl Z", engaging the ratchetwhecl I, as shown in Fig. 6 of the drawings. An armature 'n. on the lever it faces a magnet wt which when energized attracts the armature, and thus draws the lever 01. from the ratchet-wheel Z, and asubsequent break of the circuit with which the magnet is connected releases the armature and lever 41 and allows a spring a to draw the lever toward the ratchet-wheel Z", and thereby cause the pawl Z to partly turn said wheel and screw II.

On the carriage is pivoted a two-armed lever 0, one arm of which projects, across the top of the screw II, and has affixed to it a downward-projecting pin 0, which enters into the groove of the screw. The other arm of the lever 0 projects rearward below the screw, and against the under side of said arm bears the end of one of the arms of a pivoted bell-crank lever 0, the end of the other arm of which has affixed to it an armature 0", opposite which is a magnet m. The attraction of the armature by the magnet causes the lever o to press upward the lever 0, and thereby throw the pin 0 out of engagement with the screw ll, and thus release the carriage I from the action of the screw. The carriage, when moved by the screw, moves under the resistance of a springarm K, which is connected with the carriage, and when the lever 0 is lifted to raise the pin 0 out of engagement with the screw, as hereinbefore described, the said spring-arm automatically carries back the carriage I. On the end of the platen F is secured the ratchetwheel L, and on a post L, rising from the carriage, is pivoted alever L, to one end of which is connected a pawl g, which engages the ratchet-wheel and partly turns the same when the said end of the lever is raised. (See Fig. 15 of the drawings.) A dog q, pivoted on the post L and engaging the ratchet-wheel, prevents the retrograde movement thereof. The free end of the lever L projects rearward, for the purpose hereinafter explained. To the end of the frame E from which the carriage starts is secured a hook-arm J, which projects from the frame parallel with the line of travel of the carriage, and has an upward projecting hook with an inclined face on its under side. In the retreat of the carriage under the influence of the spring-arm K, hereinbefore described, the free end of the lever L passes under the inclined face of the hook on the arm J, and is thereby depressed. The depression of said lever causes the pawl q to partly turn the ratchet-wheel L, and with it the platen F, thereby obtaining the requisite spacings between the lines imprinted on the paper.

As hereinbefore stated, there is one leverk for each three adjacent type-bars j, and in order to adapt said lever to operate either of IIO said type-bars separately from the otherI employ the following devices: .On ametallic post M is pivoted horizontally a metallic lever K,

. one end of which is coupled to type-bar carlever K.

rier G, and the Opposite end projects between two magnets M M, as shown in Fig. 7 of the drawings. A spring-arm 8 projects from the post M-and has its opposite end connected to the lever K, so as to hold the same centrally between the magnets M M". At opposite sides of the lever K are contact-points a, supported on a post a, and a metal plate a connects the post a with a binding-screw N. A wire 25 is extended from the device tomagnet m and from said magnet to post M by wire 1;, as shown in Figs. 3 and 4 of the drawings. A Wire 12 connects the binding-screw N with a battery D, with which is also connected, by a wire 'v, the metallic pivotal support B of the feelers A A. From the lever K is suspended an armature 10, which faces a magnet lV and has its lower extremity arranged to come in contact with a set-screw as when the armature is attracted by the ma net, said set-screw being connected to metallic lug mounted on the metal plate to", hereinbefore referred to. Over the free ends of each set of three feelers A are arranged two contact-points h, from one of which one of the wires y y y is extended, said wires being connected to the magnets M M M The result is that when one of the feelers rises and comes in contact with the contactpoint h an electric impulse passes from the battery D, through the feeler A, thence through one of the wires y y y, to the magnets M M M. The circuit through the other contact-point of the feeler remains open until connection is made through one of the contact-points u or w by the movement of lever K. The impulse through the magnets M l causes the lever K to be drawn to one side or the other, and by this movement said lever turns the type-bar -carrier G so as to bring the requisite type-bar under the The lever K or its suspended contact-point 10, coming in contact with one of the points a or set-screw :20, causes the ourrent to pass through the second contact-point of the feeler through the wire leading to magnet wt", attracting the armature of the required printing-lever then on return through magnet m, moving carriage for next letter then to post M and stops to and post a, to the plate u and binding-screw N, and thence to battery D. The resistance in the first circuit causes the greater part of the current to flow through the second'circuit when closed. The second current passes, by means of wires t r, through the magnet m, which latter attracts the lever and thereby causes the type-bar j to imprint the paper on the platen F. One of the contact-points h, over one feeler A, is connected by wire 25 25 with the magnet m and thus, when said feeler comes in contact with the aforesaid point, the said magnet is energized and caused to actuate the bell-crank lever 0, so as to lift the arm 0 and thereby release the carriage from its engagement with the feed-screw H. The said carriage is then carried back to its original position by the spring-arm K.

P represents an indicator, showing at the transmitting-station the position of the typewriter carriage I at the receiving-station, said indicator consisting of two disks 1 2, of the same diameter, pivoted to one and the same shaft and closely one over the other, and each provided with ratchet-teeth on its periphery, one disk having connected to it one end of a coil-spring, which imparts rotary motion to said disk, and a spiral spring ct connects the two disks with each other. A pawl a is connected to an armature A, which is pivoted in such a position that by its oscillation it carries the pawl alternately from the ratchet of one disk to that of the other disk, and in this manner allow the disk to turn intermittently under the influence of its spring. The magnet U, which actuates the armature a, is connected with the wire leadingfrom the keyboard 0 to the battery D, and thus each movement of one of the keys causes the indicator P to move the distance of one of the notches in one of the ratchets. station of the line I may employ, in connection with the plates 19 and their magnets m of the selecting device, a circuit maker and breaker consisting of a short lever T, pivoted on the plate 19 and extending toward the upper end of the plate, where said lever is provided with prongs or wires T, which project through orifices O O in the armature of the plate p, as shown in Figs. 13 and 14 of the drawings. The pivoted end of the lever T is provided with a heel V, which, when the plate is attracted by the magnet m, comes in contactwith a binding-screw V, to which is con.- nected the wire (2, leading to the battery D, asshown in Fig. 1 of the drawings.

The lower end of the plate 19, coming at the same time in contact with a point R, from which a wire R leads to the magnet m, which is also connected with the battery D, causes the feeler A to be lifted.

In breaking the circuit through the magnet on by the release of the key of the key-board C or C, the leverT becomes released from the magnet 'm, an d thus breaks the ci rc uit-th rough the plate p independent of said plate.

The operation of my invention, briefly stated, is as follows: Assuming the key-board C with only five keys is employed, the operator depresses either one or more keys simultaneously, according to the letter or character to be transmitted. The depression of said key or keys closes the circuit over one or more wires 0 and energizes a correspond ing number of magnets m, which attract the plate or plates 1), the lower end of the latter coming in contact with the stop f. The circuit which passes through the magnet m also passes through the magnet g which attracts the arm f and throws the same also At the intermediate into contact with the stop f. This closes the local circuit of battery D, which energizes the magnets m and causes the same to attract the feelers A A. However, only that one of said feelers which has all of its notches coinciding with the lower edges of all the plates 1) p is allowed to rise, the other feelers, having their notches in different position, being prevented from rising by the collision of said feelers with the plates 19. The elevated feeler closes the local circuit of battery D first by the contact of the feeler with one of the contact-points h, and thereby one of the shifting-magnets M M M" is energized, so as to hold the lever K either in a central position or throw it to one side or the other, and thereby turns the type-bar carrier G so as to bring the proper type-lever in position for the printing-lever k to operate on it. By energizing one of the aforesaid magnets the circuit is completed through one of the printing-magnets m", either by the contact of the lever K with one of the stops to or by the contact of the suspended armature '10 with the stop as, which allows the current to flow also through the second contact-poi11t h of the feeler. In the return-wire of the last-mentioned circuit is the magnet m, which moves the platen of the type-writer to produce the requisite spacing between letters.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with the feelers A A and the plates 1) p, provided with armatures p 19, separate magnets for the respective plates and transmitting-keys electrically connected with the aforesaid magnets, as set forth.

2. I11 combination wit-h circuit making and breaking keys at the transmit-ting-station, the feelers A A and the plates 1) p at the receiving-station, separate magnets m m for the respective plates, main-line wires 0 c a, connecting the keys with the magnets, circuit making and breaking points arranged to come in contact with the feelers by the movement of the latter, and printing-levers operated by magnets electrically connected with the aforesaid circuit making and breaking points, substantially as set forth.

3. In combination with circuit making and breaking keys at the transmittirig-station, the feelers A A and plates 19 p at the receivin -station, separate magnets on m for the respective plat-es, main-line wires 0 c 0, connecting the keys with said magnets, circuit making and breaking points it h, arranged to come in contact with the feelers by the movement of the latter, a typewriter at the IIGCGlXlIlg-SttttiOll, a platen-carriage on said type-writer, feed mechanism for moving said carriage, the lever 0', adapted to throw the feed mechanism in and out of gear, an armature on said lever, a magnet m" for operating said lever, and wires connecting magnets m with one of the contact-points h, substantially as and for the purpose set forth.

4. In combination with the platen F, the pivoted carrier G, type-bars j jj, pivoted to and arranged in sets on said carrier, the series of levers l0 7t 70, arranged one for each set of type-bars, electroqnagnets m m" m" for operating said levers, the lever K for turning the carrier, and electro-magnets M M", for operating the lever K, substantially as described and shown.

5. In combination with the frame E, carriage I, and platen F, the screw H, pivoted to the said frame, the ratchet-wheel Z, attached to said screw, lever a, and pawl Z' for turning the screw, and an arm 0, pivoted to the carriage and adapted to engage and release the screw, substantially as and for the purpose set forth.

6. In combination with the frame E, carriage I, and platen F, the screw H, pivoted to the said frame, the ratchet-wheel l", secured to the screw, the pivoted lever n, provided with the armature n, the pawl Z', connected to said lever and engaging the ratchet-wheel, the eleetro-magnet m, facing the said armature, and a circuit maker and breaker in the circuit with which said magnet is connected, as set forth.

7. In combination with the frame E, carriage I, and platen F, the screw H, pivoted to said frame, the ratchet-wheel Z, lever 01, and pawl Z for turning the screw, the arm 0, pivoted to the carriage and adapted to engage and release the screw, and the lever 0', adapted to throw the arm 0 out of engagement with the screw, substantially as described and shown.

8. In combination with the frame E, carriage I, and platen F, the screw H, pivoted to said frame, the ratchet-wheel Z", lever 11, and pawl Z for turning the screw, the arm 0, pivoted to the carriage and adapted to engage and release the screw, the lever 0', adapted to throw the arm 0 out of engagement with the screw, and the spring-lever K, connected with the carriage to retrograde the same when released from the screw, as set forth.

In testimony whereof I have hereunto signed my name, in the presence of two witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 30th day of November, 1887.

MARK \V. DEVEY.

Vitnesses:

1-I. P. Dnmson, N. M. SEAMANS.

IOC 

